# Why don't phones adjust their volume based on ambient noise levels?

**URL:** <https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012>\
**Category:** Factual Questions\
**Created:** [September 30, 2014, 9:10pm UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012 "2014-09-30T21:10:01Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![TroutMan](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/troutman/32/6721_2.png) [@TroutMan](https://boards.straightdope.com/u/TroutMan)\
**Post date:** [September 30, 2014, 9:10pm UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/1 "2014-09-30T21:10:01Z")

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Setting the ringer/notification volume on phones is a pain. A mid-level setting is too quiet to hear in a crowded area, but is obnoxiously loud in a quiet room. Why isn’t it a standard feature of phones to automatically adjust the volume based on the background noise? Most phones already adjust the display brightness based on ambient light. Phones already have a microphone. What’s the problem?

I’m putting this in GQ because it’s such an obvious feature, there must be a factual reason why it isn’t standard.

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**Author:** ![Lanzy](https://avatars.discourse-cdn.com/v4/letter/l/74df32/32.png) [@Lanzy](https://boards.straightdope.com/u/Lanzy)\
**Post date:** [September 30, 2014, 9:30pm UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/2 "2014-09-30T21:30:17Z")

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uh,…? Mine does.

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**Author:** ![TroutMan](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/troutman/32/6721_2.png) [@TroutMan](https://boards.straightdope.com/u/TroutMan)\
**Post date:** [September 30, 2014, 10:51pm UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/3 "2014-09-30T22:51:40Z")

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What kind of phone?

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**Author:** ![Alley\_Dweller](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/alley_dweller/32/430_2.png) [@Alley\_Dweller](https://boards.straightdope.com/u/Alley_Dweller)\
**Post date:** [October 1, 2014, 2:20am UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/4 "2014-10-01T02:20:18Z")

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All that I can think of is…

I keep my phone in my pocket. It must be real quiet in there. I already have a hard enough time hearing it ring. If the phone muted its ringer even more, I would never hear it.

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**Author:** ![Digital\_is\_the\_new\_Analog](https://avatars.discourse-cdn.com/v4/letter/d/a88e4f/32.png) [@Digital\_is\_the\_new\_Analog](https://boards.straightdope.com/u/Digital_is_the_new_Analog)\
**Post date:** [October 1, 2014, 2:53am UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/5 "2014-10-01T02:53:24Z")

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I don’t recall ever working on such a feature. Then again, I only played audio engineer for one phone. I’m probably going to see one of my old testers tomorrow - I’ll try to remember to ask for an opinion.

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**Author:** ![GusNSpot](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/gusnspot/32/436_2.png) [@GusNSpot](https://boards.straightdope.com/u/GusNSpot)\
**Post date:** [October 1, 2014, 6:04am UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/6 "2014-10-01T06:04:24Z")

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So, I an old. You don’t want me to be able to set the volume where I need it?

Different types of noise affect my ability to hear certain frequencies, ( I am old ) My ears are getting tired.

Why make the phone use a computer program to figure this out every time your phone rings? And if that feature blue screens while the phone is on a very low setting???

Why can’t I have a computer that does what I want instead of these darn things that do what you tell them to do???

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**Author:** ![Cyros](https://avatars.discourse-cdn.com/v4/letter/c/a698b9/32.png) [@Cyros](https://boards.straightdope.com/u/Cyros)\
**Post date:** [October 1, 2014, 10:34am UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/7 "2014-10-01T10:34:13Z")

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I use Tasker to set up different profiles and can adjust things like ringer volume based on different factors. I have the phone set to go silent when I am in the movie theatre I normally go to and to go vibrate at work. When I am at home I have it set to 1/3 volume and all other times it is at full volume for the ringer and notifications.

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**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [October 1, 2014, 10:56am UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/8 "2014-10-01T10:56:37Z")

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> [@GusNSpot](#):
>
> So, I an old. You don’t want me to be able to set the volume where I need it?
> 
> Different types of noise affect my ability to hear certain frequencies, ( I am old ) My ears are getting tired.
> 
> Why make the phone use a computer program to figure this out every time your phone rings? And if that feature blue screens while the phone is on a very low setting???
> 
> Why can’t I have a computer that does what I want instead of these darn things that do what you tell them to do???

It should be easy enough to do both - just give people a checkbox to enable the adaptive feature (or for the grumpy old folks to turn it off).

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**Author:** ![MikeS](https://avatars.discourse-cdn.com/v4/letter/m/919ad9/32.png) [@MikeS](https://boards.straightdope.com/u/MikeS)\
**Post date:** [October 1, 2014, 12:20pm UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/9 "2014-10-01T12:20:26Z")

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> [@Alley\_Dweller](#):
>
> I keep my phone in my pocket. It must be real quiet in there. I already have a hard enough time hearing it ring. If the phone muted its ringer even more, I would never hear it.

This is exactly what I thought. How is the phone supposed to tell the difference between “buried in a pocket or bag, with ambient sounds muffled” and “sitting on a table in a quiet room”? In one case you’d want the ringer to be quite loud, and in the second it’d need to be rather soft.

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**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [October 1, 2014, 12:28pm UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/10 "2014-10-01T12:28:40Z")

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> [@MikeS](#):
>
> This is exactly what I thought. How is the phone supposed to tell the difference between “buried in a pocket or bag, with ambient sounds muffled” and “sitting on a table in a quiet room”? In one case you’d want the ringer to be quite loud, and in the second it’d need to be rather soft.

‘In pocket detection’ already exists - it uses a combination of sensors, including (I think):

Motion: If the phone is absolutely still, it might be on a table  
Light: if it’s dark, the phone might be in a pocket  
Proximity: If there’s something pressed against a lot of the screen, it might be in a pocket

By combining those factors, it’s possible to make a more accurate guess - of course, if it’s face down on top of a cloth bag in a moving vehicle, the phone may not be able to distinguish this from being in a pocket.

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**Author:** ![kayaker](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kayaker/32/441_2.png) [@kayaker](https://boards.straightdope.com/u/kayaker)\
**Post date:** [October 1, 2014, 12:46pm UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/11 "2014-10-01T12:46:35Z")

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> [@](#):
>
> Ring ring ring ring ring ring ring banana phone  
> Ring ring ring ring ring ring ring banana phone

Wait, I gotta take this.

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**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [October 1, 2014, 12:50pm UTC](https://boards.straightdope.com/t/why-dont-phones-adjust-their-volume-based-on-ambient-noise-levels/700012/12 "2014-10-01T12:50:19Z")

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I had that as my ringtone for a while (the speeded-up version from [rathergood.com](http://rathergood.com))

After that, I had the ‘RingRing… Hello?’ sequence from Charlie the Unicorn.

Then I realised people weren’t taking me very seriously at work.
